80w90 Premium Gear Oil is a petroleum blend for today's high performance shaft driven motorcycle. Special high shear strength polymers provide long lasting protection on all gear surfaces. Usage: Use in all motorcycle applications with separate clutch / transmission fluids and hypoid / shaft drive gears. Use where API GL4 or GL5 gear lubricants are called for. A petroleum blend for high performance shaft driven motorcycle. Special high shear strength polymers provide long lasting protection on all gear surfaces. Technical Data: SAE viscosity: 80w90. Grade SAE: Premium. Color D 1500: Green. Gravity: 26.0° A.P.I. Viscosity cSt @ 40°C: 171.7. Viscosity cSt @ 100°C: 16.3. Pour point: -25°F. Flash point: 395°F.